Knowledge

Capacitors and power capacitors are widely used in circuits for blocking, coupling, bypass, filtering, and tuning loops, playing a pivotal role. The difference of capacitors and power capacitors Capacitors: A container that holds electricity, a device that holds electrical charges. It is composed of a layer of insulating dielectric sandwiched between two metal electrodes. When a voltage [...]

The role of capacitance there are many, and they can be placed in a coupling circuit to allow AC signals to be transmitted to the next circuit. The capacitor also has a filtering function, which can remove a certain frequency band signal from the total signal. Capacitors can also improve the stability of the circuit after [...]

The use of feedthrough capacitors in actual engineering, the frequency of electromagnetic noise to be filtered is often as high as hundreds of MHz, or even more than 1 GHz. For such high-frequency electromagnetic noise, feedthrough capacitors must be used to effectively filter out. The reason why ordinary capacitors cannot effectively filter high frequency noise is [...]

A film capacitor is a capacitor in which a metal foil is used as an electrode, and a plastic film such as polyethylene, polypropylene, polystyrene or polycarbonate is overlapped from both ends and then wound into a cylindrical structure. The following are the precautions for using film capacitors: 1. Working voltage The choice of film capacitor [...]

Super capacitor refers to a new type of energy storage device between traditional capacitors and rechargeable batteries. It not only has the characteristics of fast charging and discharging of capacitors, but also has the energy storage characteristics of batteries. The Super capacitor classification method is: First, according to different energy storage mechanisms, supercapacitors can be divided [...]